<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>表格标签</title>
</head>
<body>
    <table border="1px" cellspacing="0" cellpadding="10px">
        <!-- 第一行：菜单单跨越3列 -->
        <tr>
            <th colspan="3" align="center">菜价单</th>
        </tr>
        <!-- 第二行：序号跨4行，菜名、菜价各占1列 -->
        <tr>
            <th rowspan="4">序号</th>
            <th>菜名</th>
            <th>菜价</th>
        </tr>
        <!-- 数据行 -->
        <tr>
            <td>白菜</td>
            <td>3￥</td>
        </tr>
        <tr>
            <td>青菜</td>
            <td>3￥</td>
        </tr>
        <tr>
            <td>芹菜</td>
            <td>3￥</td>
        </tr>
    </table>
</body>
</html>
